It is less vivid; "raced after" emits a feeling of either action, suspense, or energy. It allows the reader to connect and fully understand what is going on. "ran after" is vague and emits little high energy.
Social media can cover or spread the violation of human rights. 1) being it can take something horrible and un-humanized and normalize it like it’s just a regular day in the U.S . 2) it can can spread it by having pictures up for the world to see .
Are you supposed to correct the grammar?
If so, here's the answer:
Last summer, I went to France, because my aunt works there.